Tunable laser fluid sensor
    131.
    发明申请
    Tunable laser fluid sensor 有权
    可调谐激光流体传感器

    公开(公告)号:US20050040337A1

    公开(公告)日:2005-02-24

    申请号:US10953174

    申请日:2004-09-28

    Abstract: A sensitive fluid sensor for detecting fluids and particularly trace fluids. The sensor may be adjustable for detecting fluids of various absorption lines. To effect such adjustment, a tunable laser may be used. The laser may be an edge emitting diode, a VCSEL or other tunable source. The detection apparatus of the sensor may incorporate a sample cell through which a laser light may go through. The sample cell may comprise a tunable ring-down cavity. The ring-down cavity may be a ring laser cavity like that of a ring laser gyroscope. There may be a photo detector proximate to the ring down cavity connected to a processor.

    Abstract translation: 用于检测流体,特别是痕量流体的敏感流体传感器。 传感器可以是可调节的,用于检测各种吸收线的流体。 为了实现这种调整,可以使用可调激光器。 激光器可以是边缘发光二极管,VCSEL或其它可调谐源。 传感器的检测装置可以并入一个可以穿过激光的样品池。 样品池可以包括可调谐的环形腔。 环形腔可以是类似于环形激光陀螺仪的环形激光腔。 可能存在连接到处理器的环形空腔附近的光电检测器。

    Broad band referencing reflectometer
    132.
    发明申请
    Broad band referencing reflectometer 有权
    宽带参考反射计

    公开(公告)号:US20050006590A1

    公开(公告)日:2005-01-13

    申请号:US10909126

    申请日:2004-07-30

    Applicant: Dale Harrison

    Inventor: Dale Harrison

    Abstract: A spectroscopy system is provided which is optimized for operation in the VUV region and capable of performing well in the DUV-NIR region. Additionally, the system incorporates an optical module which presents selectable sources and detectors optimized for use in the VUV and DUV-NIR. As well, the optical module provides common delivery and collection optics to enable measurements in both spectral regions to be collected using similar spot properties. The module also provides a means of quickly referencing measured data so as to ensure that highly repeatable results are achieved. The module further provides a controlled environment between the VUV source, sample chamber and VUV detector which acts to limit in a repeatable manner the absorption of VUV photons. The use of broad band data sets which encompass VUV wavelengths, in addition to the DUV-NIR wavelengths enables a greater variety of materials to be meaningfully characterized. Array based detection instrumentation may be exploited to permit the simultaneous collection of larger wavelength regions.

    Abstract translation: 提供了一种光谱系统,其被优化用于在VUV区域中的操作并且能够在DUV-NIR区域中表现良好。 此外,该系统还包含一个光学模块,该模块提供可用于VUV和DUV-NIR中优化的可选择的源和检测器。 同样,光学模块提供通用的传送和收集光学器件,以使得能够使用类似的光点特性来收集两个光谱区域中的测量。 该模块还提供了快速参考测量数据的方法,以确保实现高度可重复的结果。 该模块还在VUV源,样品室和VUV检测器之间提供受控的环境,其作用是以可重复的方式限制VUV光子的吸收。 除了DUV-NIR波长之外,使用包含VUV波长的宽带数据集使得可以有意义地表征更多种类的材料。 可以利用基于阵列的检测仪器来允许同时收集更大的波长区域。

    X-ray spectroscope
    133.
    发明授权
    X-ray spectroscope 失效
    X光分光镜

    公开(公告)号:US5790628A

    公开(公告)日:1998-08-04

    申请号:US761207

    申请日:1996-12-06

    Inventor: Hidenobu Ishida

    CPC classification number: G01T1/36 G01N23/2252

    Abstract: The following arrangement is adopted to achieve an X-ray spectroscope capable of simultaneously spectrally analyzing, with a single spectral scanning, X-rays emitted from a point-like X-ray source in a plurality of wavelength ranges such that X-rays in a wide wavelength range can spectrally be analyzed with a single spectral scanning. In an X-ray spectroscope in which a point-like X-ray source, a spectral crystal and a X-ray detector are disposed along a Rowland circle and in which, with the distance between the X-ray source and the spectral crystal maintained equal to the distance between the spectral crystal and the X-ray detector, this distance is continuously changed such that the wavelength of X-rays to be spectrally analyzed is continuously changed, the X-ray spectroscope is characterized in that the spectral crystal comprises a plurality of arcuate crystals for spectrally analyzing respective X-rays different in wavelength, that at least one of the arcuate crystals is located at a position apart from the reference plane including the Rowland circle and that the X-ray detector comprises at least one X-ray detector for detecting the X-rays diffracted by the arcuate crystals.

    Abstract translation: 采用以下配置来实现能够通过单次光谱扫描在多个波长范围内从点状X射线源发射的X射线同时进行光谱分析的X射线分光仪,使得X射线在 宽波长范围可以通过单次光谱扫描进行光谱分析。 在其中点状X射线源,光谱晶体和X射线检测器沿着Rowland圆设置的X射线分光仪中,其中,在维持X射线源和光谱晶体之间的距离 等于光谱晶体和X射线检测器之间的距离,这个距离被连续地改变,使得要被光谱分析的X射线的波长连续地改变,X射线分光镜的特征在于,光谱晶体包括 多个弧形晶体,用于频谱分析波长不同的各种X射线,至少一个弓形晶体位于离开包括罗兰圆的参考平面的位置,并且该X射线检测器包括至少一个X射线检测器, 用于检测由弓形晶体衍射的X射线。

    Photometer apparatus
    134.
    发明授权
    Photometer apparatus 失效
    光度计装置

    公开(公告)号:US5745243A

    公开(公告)日:1998-04-28

    申请号:US749419

    申请日:1996-11-15

    CPC classification number: G01N21/251 G01J3/36 G01J2003/1213

    Abstract: A photometer for measuring electromagnetic radiation absorption of a sample utilizing a source of the electromagnetic radiation. Electromagnetic radiation is conducted from the source, to a sample sensor, and is passed through the sample utilizing a sample cell. The electromagnetic radiation is then directed to a detection system which determines absorbance of electromagnetic radiation by the sample at the sample cell. The detection system includes a beam splitter which receives the electromagnetic radiation and outputs first and second beams. A first detector having a first wavelength filter and a second detector having a second wavelength filter receives the two beams from the splitters. One detector may be employed to produce a reference signal. The remaining detector or detectors produce an output signal which is a representation of a characteristic, such as absorbance of the sample. The output signals are operated on by a reference signal, and converted into a measurement absorbance.

    Abstract translation: 一种用于测量利用电磁辐射源的样品的电磁辐射吸收的光度计。 电磁辐射从源极传输到样品传感器,并通过样品池通过样品。 然后将电磁辐射引导到检测系统,该系统确定样品池中样品的电磁辐射的吸光度。 检测系统包括分束器,其接收电磁辐射并输出第一和第二光束。 具有第一波长滤波器的第一检测器和具有第二波长滤波器的第二检测器接收来自分离器的两个波束。 可以使用一个检测器来产生参考信号。 剩余的检测器或检测器产生输出信号,其是特征的表示,例如样品的吸光度。 输出信号通过参考信号进行操作,并转换成测量吸光度。

    Method and apparatus for determining substances and/or the properties
thereof
    135.
    发明授权
    Method and apparatus for determining substances and/or the properties thereof 失效
    用于确定物质和/或其性质的方法和装置

    公开(公告)号:US5737076A

    公开(公告)日:1998-04-07

    申请号:US473743

    申请日:1995-06-07

    Abstract: The invention relates to a procedure for determining an identification of a sample of material, or its properties. Electromagnetic radiation from a radiation source (1) is reflected or transmitted through the sample. The radiation from the sample is collected and analyzed over several channels (7, 7', 7"), which modulate the radiation with a spectral transmission function which is unique for each channel. The modulated radiation is transmitted to one or several detectors (9, 9', 9") which produce output signals which are further electronically processed. The spectral range of each of the individual channels is common to all of the channels. Within the common range the channels are provided with different spectral transmission functions (7, 7',7") which are optimally chosen for a given application.

    Abstract translation: 本发明涉及用于确定材料样品或其性质的鉴定的程序。 来自辐射源(1)的电磁辐射被反射或透过样品。 来自样品的辐射在几个通道(7,7',7“)上进行收集和分析,该通道利用每个通道唯一的光谱传输函数调制辐射。 调制的辐射被传输到一个或多个检测器(9,9',9“),这些检测器产生进一步电子处理的输出信号。 每个通道的光谱范围对于所有通道是共同的。 在通用范围内,通道被提供有不同的光谱传输功能(7,7',7“),这些功能对于给定的应用是最佳选择的。

    Optical detector for echelle spectrometer
    136.
    发明授权
    Optical detector for echelle spectrometer 失效
    光电探测器

    公开(公告)号:US5596407A

    公开(公告)日:1997-01-21

    申请号:US477169

    申请日:1995-06-07

    CPC classification number: G01J3/2803

    Abstract: A solid-state detector for use in an atomic spectrometer comprises a plurality of arrays of sensing elements, or pixels, each of the arrays being positioned along and on the locations of spectral signals on a focal plane of an echelle grating spectrometer. The sensing elements are positioned along the many diffraction orders presented on a two-dimensional echelle grating focal plane so that at least one element is located at each and every resolution element regardless of global x-y coordinate positioning of the elements or with reference to each other. The result is a series of skewed lines of sensing elements, those lines being in the same shape as the series of diffraction order lines which comprise an echelle spectrum. The solid-state detector is particularly useful in an atomic spectrometer wherein an echelle grating is used to diffract incident radiation such that the various components of the radiation may be observed.

    Abstract translation: 用于原子光谱仪的固态检测器包括多个感测元件或像素阵列,每个阵列沿着光谱信号的位置定位在梯形光栅光谱仪的焦平面上。 感测元件沿着呈现在二维光栅焦平面上的许多衍射级定位,使得至少一个元件位于每个分辨率元素处,而不管元件的全局x-y坐标定位或彼此参考。 结果是传感元件的一系列偏斜线,那些线与包括梯形图的一系列衍射级线具有相同的形状。 固态检测器在原子光谱仪中特别有用,其中使用梯形光栅衍射入射辐射,使得可观察到辐射的各种成分。

    Spectroscopic analysis
    139.
    发明授权
    Spectroscopic analysis 失效
    光谱分析

    公开(公告)号:US5436723A

    公开(公告)日:1995-07-25

    申请号:US27209

    申请日:1993-03-05

    Abstract: A spectroanalytical system with radiation dispersing apparatus for dispersing radiation into a spectrum for concurrent application to an array of exit ports; sample excitation apparatus for exciting sample material to be analyzed to spectroemissive levels for generating a beam of radiation for dispersion by the dispersing structure; the exit port array including a corresponding array of detectors including a first detector positioned adjacent a first exit port positioned to sense first order radiation from an element of interest and a second detector positioned adjacent a second exit port to sense second order radiation from the same element of interest; and processing apparatus for responding to outputs of the first and second detectors to provide a compensated output as a function of the quantity of the element of interest in the sample material.

    Abstract translation: 一种具有辐射分散装置的分光系统,用于将辐射分散到光谱中以同时应用于出口阵列; 样品激发装置,用于激发要分析的样品材料的分光发射水平,以产生用于通过分散结构分散的辐射束; 所述出口端口阵列包括相应的检测器阵列,所述检测器阵列包括邻近第一出口处定位的第一检测器,所述第一检测器定位成感测来自感兴趣元件的一级辐射,以及邻近所述第二出口定位的第二检测器,以感测来自所述相同元件的二阶辐射 出于兴趣; 以及用于响应于第一和第二检测器的输出的处理装置,以提供作为样品材料中感兴趣元素的量的函数的补偿输出。

    Two-dimensional colorimeter
    140.
    发明授权
    Two-dimensional colorimeter 失效
    二维色度计

    公开(公告)号:US5432609A

    公开(公告)日:1995-07-11

    申请号:US177843

    申请日:1994-01-05

    CPC classification number: G01J3/51 G01J3/36 G01J3/524 G01J3/465 G01J3/513

    Abstract: A two-dimensional colorimeter focuses light through a beam splitter onto a rotary filter so that a first light receiving element can receive light from multiple points on a sample. A rotating filter can provide multiple measurements based upon different wavelengths of light. A portion of the light from the beam splitter also contacts a spectral sensor which separates the light from a particular point into primary wavelength elements which are converted into electrical signals. Based upon these primary wavelength elements, the first signals from the light receiving element are corrected. As a result, the measurement of chromaticity of multiple points on a sample can be performed accurately using a device of simple construction.

    Abstract translation: 二维色度计将光束通过分束器聚焦到旋转滤光器上,使得第一光接收元件可以接收来自样品上多个点的光。 旋转滤波器可以基于不同波长的光提供多个测量。 来自分束器的光的一部分还接触光谱传感器,光谱传感器将光从特定点分离成主要波长元件,其被转换成电信号。 基于这些主波长元件,来自光接收元件的第一信号被校正。 结果,可以使用简单结构的装置来精确地进行样品上多个点的色度测量。

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